... Index:1. Dispersive elements: Imported concave holographic grating, with two national patent technology2. Testing method: rate assay, ... . Power Requirement: 220V/50Hz11. International standard RS-232 serial port, for connecting to computer, optional to be connected external ... than 3000 hours14. Cuvette: 32μL titanium/quartz cuvette, optical path 1cm, small-volume, easy to clean; automatically ...